Mini lathe size increase

thingiverse

This is a modification for mini lathe to increase turnable diameter and length. What my one is set to is up to 90mm in diameter, and 250 in length. In this case, no hardware modification of the parts from original lathe are involved, you just need 4 screw M4x20, 4 4mm normal washers and 4 M4 nuts, 4 screws M6x20 and 2 screws M6x35 with washers. For all of the M6 screws you will be using the original square nuts from the lathe. Standard lathe axis height is 27.5mm, if you increase axis height by 20mm it will be 47.5mm resulting in a maximum turnable diameter of 95mm. The biggest square bar you can turn is about 70x70mm. To have a rough idea of the diameter you will get starting from a square bar, multiply 90 x 0.7 (about 63mm cylinder). Starting with hexagonal (0.86) or octagonal bar (0.92) can get your diameter up to 77 or 82mm. Following the same calculations, if you want a final 100mm diameter round cylinder, starting from square bars, you need to multiply 100 by 1.41, so you will need to turn 141mm. This lead to a axis height of 70,5mm. 70.5-27.5=43mm height increase. Account for some misaligment and make it 45. Be aware that increasing turnable diameter can be dangerous as parts weight start to get considerable. Just use your common sense...this machine is not really made for turning big objects...safe turning !!! This is a customizer, so you can increase turnable diameter and length as you like changing the parameters, plus arrange the position of the screws positions as for your preference. I kept the screws holding the plate to the base in a way they can be undone without removing the motor support. There are two parts, 1 is for the motor support side, 2 is for the tailstock side. I suggest a 25% infill or more to avoid bending of the motor support. The tiny holes on the side are just for reinforcement. Othe mini lathe modifications: https://www.thingiverse.com/thing:3818493 https://www.thingiverse.com/thing:3810476 This is the machine this modification is made for: <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575414000&toolid=10001&campid=5338578714&customid=Mini+Lathe&icep_item=223620687036&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Mini Lathe</a> ---------------------------------------------------------------------------------------------------- I created these links where you can find all common filaments and spare parts at the best prices. These are just links to selected eBay and Aliexpress items, where I normally buy spare parts and materials for my printer, prices are excellent and products are good. If you buy something from here you will support me a little bit to make these projects. <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=PLA&icep_uq=pla+filament+1kg&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">1Kg PLA Filament - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=PLA&uq=pla+filament+1kg&mpt=[CACHEBUSTER]"> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=ABS&icep_uq=abs+filament+1kg&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">1Kg ABS Filament - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=ABS&uq=abs+filament+1kg&mpt=[CACHEBUSTER]"> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=TPU&icep_uq=tpu+filament+1kg&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">1Kg TPU Filament - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=TPU&uq=tpu+filament+1kg&mpt=[CACHEBUSTER]"> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=PET&icep_uq=pet+filament+1kg&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">1Kg PET Filament - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338353127&customid=PET&uq=pet+filament+1kg&mpt=[CACHEBUSTER]"> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Extruders&icep_uq=extruder&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=10.0&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Complete extruders - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Extruders&uq=extruder&mpt=[CACHEBUSTER]"> <a target="_blank" href=" http://s.click.aliexpress.com/e/cAj3EWuu">Heat blocks and heaters - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Nozzle+standard&icep_uq=printer+nozzle+-throat+-drill+-volcano&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=0.0&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Standard nozzles - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Nozzle+standard&uq=printer+nozzle+-throat+-drill+-volcano&mpt=[CACHEBUSTER]"> - <a target="_blank" href="http://s.click.aliexpress.com/e/cGd0cfHm">Standard nozzles Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Nozzle+volcano&icep_uq=printer+nozzle+volcano+-throat+-drill&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=0.0&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Volcano nozzles - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338352411&customid=Nozzle+volcano&uq=printer+nozzle+volcano+-throat+-drill&mpt=[CACHEBUSTER]"> - <a target="_blank" href=" http://s.click.aliexpress.com/e/bAj7m84u">Volcano nozzles - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=pulleys&icep_uq=gt2+pulley+-belt&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">GT2 pulleys - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=pulleys&uq=gt2+pulley+-belt&mpt=[CACHEBUSTER]"> - <a target="_blank" href="http://s.click.aliexpress.com/e/bSvvHDVQ">GT2 pulleys - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=belts&icep_uq=gt2+belt+-pulley+-closed+-close+-teeth+-fixing+-spring&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">GT2 belts - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=belts&uq=gt2+belt+-pulley+-closed+-close+-teeth+-fixing+-spring&mpt=[CACHEBUSTER]"> - <a target="_blank" href=" http://s.click.aliexpress.com/e/cYLBXYNS">GT2 belts - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=linear+bearings&icep_uq=linear+bearing+lm&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Linear bearings LM series - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=linear+bearings&uq=linear+bearing+lm&mpt=[CACHEBUSTER]"> - <a target="_blank" href=" http://s.click.aliexpress.com/e/mh4YQOc">Linear bearings LM series - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=nema17&icep_uq=nema+17+motor+-damper+-cable+-dampers+-bracket+-mounting+-cables+-connector&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">NEMA 17 step motors - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=nema17&uq=nema+17+motor+-damper+-cable+-dampers+-bracket+-mounting+-cables+-connector&mpt=[CACHEBUSTER]"> - <a target="_blank" href=" http://s.click.aliexpress.com/e/c1tP9aEc">NEMA 17 step motors - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=3d+pens&icep_uq=3d+pen&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=15.0&icep_maxPrice=&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">3d pen - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338351675&customid=3d+pens&uq=3d+pen&mpt=[CACHEBUSTER]"> <a target="_self" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=100.0&icep_maxPrice=200.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">100$-200$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/cYWRL47m">100$-200$ 3D printers - Aliexpress</a> <a target="_self" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=200.0&icep_maxPrice=300.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">200$-300$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/u0wFbg8">200$-300$ 3D printers - Aliexpress</a> <a target="_self" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=300.0&icep_maxPrice=500.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">300$-500$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/chuHBtSY">300$-500$ 3D printers - Aliexpress</a> <a target="_self" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=500.0&icep_maxPrice=1000.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">500$-1000$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/cXDTSzOY">500$-1000$ 3D printers - Aliexpress</a> <a target="_self" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=15&icep_catId=&icep_minPrice=1000.0&icep_maxPrice=2000.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">1000$-2000$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/ZVx8Rlm ">1000$-2000$ 3D printers - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printers&icep_uq=3d+printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=2000.0&icep_maxPrice=5000.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">2000$ - 5000$ 3D printers - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printers&uq=3d+printer&mpt=[CACHEBUSTER]"> - <a target="_self" href="http://s.click.aliexpress.com/e/8Dop8xA">2000$-5000$ 3D printers - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=filament+extruder&icep_uq=filament+extruder+-printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=650.0&icep_maxPrice=5000.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Filament extruding machine - eBay</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=filament+extruder&uq=filament+extruder+-printer&mpt=[CACHEBUSTER]"> - <a target="_blank" href="http://s.click.aliexpress.com/e/bBJOTb9W">Filament extruding machine - Aliexpress</a> <a target="_blank" href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer+pellets&icep_uq=filament+extruder+-printer&icep_sellerId=&icep_ex_kw=&icep_sortBy=12&icep_catId=&icep_minPrice=0.0&icep_maxPrice=0.0&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">Pellets for extruding machine</a><src="http://rover.ebay.com/roverimp/1/711-53200-19255-0/1?ff3=9&pub=5575414000&toolid=10001&campid=5338355898&customid=printer+pellets&uq=filament+extruder+-printer&mpt=[CACHEBUSTER]">