Pen Mount

Mostly Printed CNC - MPCNC Advice
1

Hey all, Sorry if this has been asked before but does anyone know if Ryan’s pen mount puts the pen about where the 660 bit would be? Thanks

2

Nope, pens vary in size and the router sticks out further than most pens in the mount.

1 Like
3

Thanks Ryan, I am just trying to make some reference marks on my spoil board for lining up projects. Any tips? Probably just use a measuring tape and do it manually.

4

Unless you have dual end stops the marks will change. I do not line things up on any of my machines. I mount them securely and go from there.

1 Like
5

I have the dual end stops so I’m just gonna measure from the home spot manually. Thanks!

6

Hey Mike, here’s how I have my mpcnc set up. The blocks are quarter inch scrap plywood that are screwed down to the spoil board. I squared them up by moving it to the limit then touching the bit the length of the board. They also have a couple dots of superglue to keep them from moving, but allows me to pop them off when they get scared up too much.

XryBMikGiIKsGMQZPr7TkoudEgDIURtD_7rgSPqoIIvrMkT4NMOdwWILafQ0q4CvuOJ4JOKuSx7iHrdF2lGMQ1lxr2BvvPoO08wyALtCrK66yCcT6hHYEeCOdUJVoirbB8uA54y0Q0ib64LnwD2vr_rv0BGLm9aAAGuIoYKsL75yggjvYgqF0Sn8T2smIYrgYWFpXQWVZgZJoXcjbzwsjPvf9i8fDCFmwUoWdVxkVV5KWEvzhD-gcaPTQEn2Zb9bzwZkZhGmamvvkhLEEU7rGBM9wUemdnmm2XvIzDm0wvsJS3Xo3NTe3Ng7j1EO4LD5K8AgSEN0n1g4vCNSc04VSbjxfUTl940RYpDtuafHRMTSQMJr1pRmlyfQR7MSxIPe56hjxXBUwIv-v_xlDWs1wtCV7ekdC6AnQCkt0THymp5GL92ayjkwMGFUAOf5VkQ1CFHE8c3gfJjSpkUJeWVG5YmP1Ep_YY2VGPuyDGVda1LRWUgHMeWeg9E4KPe8Q2RyivAtSGD-WildFFhE6CDfhj8ybJuW28gOKqWz4IGdCwUEETIt9DTyl59zf8u1Gk8Btz775pwAEQM5PgOUvXZYChuvztEuAwZfpnrjGlToybsnVOPMdrRC64tTFlNGWWbTxYmchxnyjUTzB5XKvapw0zQatRVYelthLtGYFoHNyg1gZbu_2IOsSoXFCA=w1418-h1063-no1417×1063

2 Likes
7

Hey Barry thank you for sharing. I’m sure you didn’t wanna just show off your bamboo LR2 plates :wink: What I ended up doing was just making a mark at 2 inches to the right of my home position then one 2 inches above that to make a 90 angle. I set up in cam with the two inch space. I want the gap so I set it to go 0,0 for tool changes. I start the program by disabling the steppers then move over my work piece and home Z. When clicked for continue it homes then starts the project. I tested it all out today and it worked really well except the damn z clip kept popping off. Oh and something strange happened during one of the carves it went to 0,0 twice and then just continued off where it was.

8

Recently I have a magnet in the alligator clip. It works pretty good but you have to pay attention or it can droop and hit the surface first.

 

I have something similar to Barry’s for the production of the 611 plates. Made me think a bit of a french cleat would be much more useful. you can just use two screws on the opposite sides and hold it really well. I had a non-square piece come out during an aggressive cut. Next time I set up a jig it will have a slight angle to the cut.

9

I’m thinking I’m just gonna get a slightly larger alligator clip from work for the z probe. So just make the corner hold down piece slightly taller than the material and angled. I can see that being a good simple solution. I’ve just been using these printed hold downs:https://www.thingiverse.com/thing:1744734 they are working so far.